Drop and cellar-door hinge.



No. 817,748. PATENTED APR.17,`196.

W. 1. L H. D. BOULDBN. ND GELLAR DOOR'HINGE.

APPLICATION FILED MARA@ 1905.

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WlLLlM M. BOULDEN, WlLLlAM I. BOULDEN, AND HERBERT D.

BOULDEN, OF CHESTER, PENNSYLVANIA.

DROP AND .CLLAR-DOOR HlNGE.

speeineation 'of Lettersratent.

Patented April 17 Application filed March 16,1905. Serial No. 250.498.

To all whom, it may corwcrn:

Be it known -that we, WILLIAM M` BOUL- DnN, WILLIAM l. BOULDEN, andHERBERT D. BOULDEN, citizens of the United States, re siding at Chester,in the county of Delaware and State of Pennsylvania, have inventedcertain new and useful Improvements in Drop and Cellar-Door Hinges; Aand we do declare the following to be a full, clear, and'eX- actdescription oi' the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

The invention. relates to a drop and cellardoor hinge.

The object of the present invention is to improve the construction ofhinges and to provide a simple and comparatively inexpensive one ofgreat strength and durability, designedv particularly for use oncellar-doors and adapted when the cellar-doors are opened to permit theweight of the same to rest upon the supporting-frame and capable y whenthe doors are closed of enabling the same to present a smooth exteriorto avoid obstructions and to prevent pedestrians from stumbling orfalling.

A further object of the invention is to pro` vide a device of thischaracter capable when the cellar-door is opened of automaticallylookin(T the same securely in such position to prevent the door frombeing accidentally closed.

With these and other objects in viewthe invention consists in theconstruction and novel combination and arrangement of partshereinafterfully described, illustrated in the accompanying drawings,and pointed out in theclaims hereto appended, it being under# stood thatvarious changes in the form, proportion, size, and minor details ofconstruction within the scope of the claims may be resortedv to withoutdeparting from the spirit. or sacrificing any of .the advantages of theinvention,

In the drawings, Figure l is a perspective view of a pair oi?cellar-doors provided with drop-hinges constructed in accordance withthis invention,`the doors being open. Fig. 2 is a transverse sectionalview of the same, the doors being closed. Fig. 3 is a transversesectionalview of one side of one ofthe cellardoors and the supportin-rame or base, the parts being arranged as s own in Fig. 1. Fig- 4 is adetail perspective view of one of the fixed hinge members. Fig.A 5 is adetail perspective view illustrating another form of fixed hinge member.

Like numerals of reference designate correspending parts in alltheigures of the draw-` ll'lCS:

tl desi ates a rectangular supportingframe oriu any suitable materialand preferably consisting of angle-iron sides and ends having horizontalVYtop ilanges or portions 2 and ver tical portions or ilanges 3,arranged at the outer edges of the horizontal top portions or flanges 2,as clearly illustrated in Figs. 2 and 3 of the drawings. The an le-ironsides and ends may be formed integra with `each other, as illustrated inFig. l of the drawings; but the frame may be constructed in any otherdesired manner, as will be readily understood.

The su porting-frame or base receives a pair ofce lar-doors 4,consisting,`p referably, of plates of iron and adapted when closed torest upon the upper faces of the sides and 4ends of the frame orsupport, as clearly indicated in Fig. 1 of the drawings. The cellardoorsare connected withthe frame or support by interiorly-arranged hinges,each consisting of a fixed member 5 and a movable member 6. The Xedmember may, as illustrated in Fig. 4 of the drawings, consist of anattachment-plate and a pair of perforated lugs, forming ears or eyes 7for the reception Y ol a pintle 8, which connects the movable hingemember to the fixed hinge member. The movable hinge member consists of asubstantially U-shaped bar or iece havingone end perforated to receive te pintle and arranged between the eyes or e'ars 7,- and the other end ofthe bar or piece is bent'outward approximately at right angles to forman atlower face of the door 4, as clearly' shown in Fig. 2 of thedrawings. The attachment arm or portion may be secured by rivets orother suitable fastening devices to the door,

and the U-shaped portion o bend is adapted to clear thesupportingrame orbase when the cellar-door is opened. The eyes or ears are located atavpoint beneath the median line of the horizontal flange orportion 240ithe sides of the base or supportingfframe, and

ase. designed to be constructed of ,tachment-arm' 9, which is secured tothe i when the cellar-door is opened the lll-shaped body portion or bendoi the movable hinge member extends to a point above the horizontallange or portieri 2 and permits the cellardoor, as illustrated in Fig.8, to rest upon the sup\p ortingfraine or base, whereby the joint of thehinge is relieved of strain. Instead of employing a vfixed hinge memberof the form illustrated in Fig. 4 of the drawings a bar or' plate l()may be employed for hinging the movable members to the supporting-frameor base. T he bar or Yfra ine 10, one-half of which is illustrated inFig. 5 of.the drawings, is provided with a terminal pivot 11, adapted toengage the eye or perforation of the movable member. By thisconstruction a single bar or piece may be employed for connecting thetwo movable members of av cellar-door to the base or supportingframe.The hinges by being interiorly arranged permit t'he cellardoor topresent a smootheiterior, so that there are -no projections over whichpedestrians4 might stumble or fall.

Each cellar-door is provided at its inner or lower face adjacent to itshinged edge with a slidable bolt 12,' which when the cellar-door, isopened is adapted to automatically engage the base or supportingrame,whereby the v cellar-door is'firmly locked in its open posi tion and iseffectually prevented from being accidentally closed. Each side of thebase or supporting-frame is provided with a perfo-v ration 1,3, arrangedto be engaged by the slid able bolt, as clearly illustrated in Figs. 1.and 3 of the drawings. The slidable bolt, which may be mounted on thecellar-door in any suitable manner, is provided with a suitablehandle'for enabling it to be withdrawn from sian/ie engagement with thebase or supportingframe when it is desired to close the cellardoor..

The base or supporting-frame is provided at its sides and endswlithprojecting lugs 14, extending horizontallyffrom the base or sup-vporting-frame to facilitate the mounting oi' the saine in position at acellar-opening. These lugs are preferably formed by E...-shaped platesor pieces secured to the vertical flanges or portions of the sides andends of the base or supporting-frame.

Having thus fully described our invention, what we claim as new, anddesi-re to secure by Letters Patent, is-.

l. In a device -of the class described, the combination with a base o rsupport, and a door, of an interiorlydisposed hinge arranged to swingthe door in opening over the base or support, and a locking devicemounted on the door and arranged to automatically engage the exterior ofthe base or sup port for locking the door in its open position.

2. in a device of the class described, the combination with a base orsupport, and a door, of a hinge connected with the door and arranged toswing the door in opening over the base or support, and a slidable boltmounted on the dooi and arranged to engage the exterior of the base orsupport automatically when the door is open.

' in testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

WILLIAM M. BGULDEN.

WILLIAM I. BOULDEN. HERBERT D. BUULDEN. /Vitnesses:

Crnis. L. WILLIAMS, FRANK Grim,

